Technical Information Power And Control Cables Power Appendixes Guide to the Wiring Regulations Domestic installations - (Earth) Bonding solutions صفحه Domestic installations - (Earth) Bonding solutions
| Domestic installations - (Earth) Bonding solutions |
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* Take one bond to incoming metallic water and gas pipes. * If there is a metallically piped central heating system, bond it in one location. This is not necessary where any metallic pipe, bonded elsewhere (e.g. metallic water pipe), is connected and tests satisfactorily for continuity. * If the structure is metallic, take a bond to one location; this is not necessary for intermediate metallic stud partitions or individual metal beams and the like. * The central heating system will probably not need a cable bond connection if connected by metallic gas or water pipes which have themselves been bonded (see following Figure). |
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Sizing protective bonding conductors : This is due to the fact that the suggested minimum sizes relate to the size of the line and earthing conductor for TN-S supplies, and the supply neutral conductor for TN-C-S (PME) supplies. Following Tables provide an easy look up for main protective bonding conductor sizes. |
| TN-S, PNB, TT main protective bonding conductor sizes. |
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| PME (TN-C-S) main protective bonding conductor sizes. |
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